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  • 1
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    Unknown
    Sequential-Impulse Generator Uses Fiber-Optics (1982)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Light pulse from a ruby or neodymium-glass laser enters miniature optics of repetitive-detonation apparatus. Traveling along a bundle of optical fibers, light strikes laser-sensitive microdetonator and charge explodes. Apparatus then advances next charge in train into position. Possible applications of sequential-impulse generator are in creating shock waves for aerodynamics research and in generating electrical power by magnetohydrodynamics.
    Keywords: PHYSICAL SCIENCES
    Type: NPO-14939 , NASA Tech Briefs (ISSN 0145-319X); 6; 1; P. 24
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Unknown
    Compact laser through improved heat conductance (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A 16-joule-pulse laser has been developed in which a boron nitride heat-conductor enclosure is used to remove heat from the elements. Enclosure is smaller and lighter than systems in which cooling fluids are used.
    Keywords: PHYSICAL SCIENCES
    Type: NPO-13147
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Unknown
    Laser system to detonate explosive devices (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Detonating system is not affected by electromagnetic interference. System includes laser source, Q-switch, and optical fiber connected to explosive device. Fiber can be branched out and connected to several devices for simultaneous detonation.
    Keywords: PHYSICAL SCIENCES
    Type: NPO-11743
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 4
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    Unknown
    Laser-actuated mechanical device (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Actuator is portable and can be used in high-temperature (over 500 C) environments by incorporating tungsten metal film and quartz window. Actuator can be triggered when it is not directly in laser beam path by utilizing fiber optics. It is advantageous for remotely switching ultra-high voltage systems.
    Keywords: PHYSICAL SCIENCES
    Type: NPO-13105
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Unknown
    Measuring Combustion Advance in Solid Propellants (1986)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Set of gauges on solid-propellant rocket motor with electrically insulating case measures advance of combustion front and local erosion rates of propellant and insulation. Data furnished by gauges aid in motor design, failure analysis, and performance prediction. Technique useful in determining propellant uniformity and electrical properties of exhaust plum. Gauges used both in flight and on ground. Foilgauge technique also useful in basic research on pulsed plasmas or combustion of solids.
    Keywords: PHYSICAL SCIENCES
    Type: NPO-16585 , NASA Tech Briefs (ISSN 0145-319X); 10; 5; P. 70
    Format: text
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    NASA TECHNICAL REPORTS
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